Method of manufacturing tarsia-work.



F.KOHN. METHOD OF MANUFACTURING TARSIA WORK.

APPLICATION FILED SE-PT. 3,1908.

943,309. I Patented Dec. 14, 1909.

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FELIX Koran, or VIENNA, AUSTRIA-HUNGARY.

METHOD OF MANUFACTURING TARSIA-WORK.

Specification of Letters Patent.

Patented Dem 14, 1909.

Application filed September 3, 1908. Serial No. 451,545.

To all whom it may concern: w

Be it known that I, FELIX KoHN, fabricant, a subject of the Emperor of Austria- Hungary, and a resident of Vienna, in the Empire of Austria-Hungary, 1., Elisabethstrasse 24, have invented a Method of Manufacturing Tarsia-WVork; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The subject-matter of the present invention is an improved method of manufacturing tarsia-work by stamping out inlays and pressing the same into the bed-plate.

A method is already known according to which metallic inlays in wood are made by the inlays being stamped out by means of a top and bottom stamp, whereupon the concerned cuts or incisions are made in the bedplate by means of the same cut, and lastly the inlays are pressed into these incisions. In contradistinction to. this known method, the present invention consists substantially in the material which isto be inlaid being pressed by means of a puncheon through the matrix into the object which is to be inlaid placed against the matrix, so that the process of inlaying can be performed in one operation. For this purpose an apparatus such as is shown in the accompanying drawings may be employed.

In the drawings :Figure 1 is a vertical longitudinal section through the device in the osition immediately before pressure is applied; Fig. 2 is a similar view of the device in the position in which the inlay material has been stamped out and not pressed into the object to be inlaid; Fig. 3 is a like view of the device when iii-the final wposition; Flg. 4 is a plan View of the matrix; Figs. 5, 6 and 7 are detailed views, on a larger scale, of the parts with the same relative as in Figs. 1, 2 and 3.

Referring to the drawing, the apparatus consists of a puncheon plate 1- having on its lower side a die portion 2, of the configuration of the inlay which is to be applied.

3 is a matrix having a portion cut away to correspond in shape to that of the die. The matrix is of a thickness somewhat less than the height of the die portion 2 of the puncheon for the reasons stated hereafter.

The operation is as follows :-The object positions which is to be inlaid, for example a fiat piece of wood 7, is placed on a support 6; then the matrix 3 is put on the piece 7, and a sheet of inlay 9, for example a sheet of Veneer, is placed on the matrlx. The puncheon 1 with its die portion 2 is then arranged over the veneer, and in order to enable it to cooperate properly with the matrix 3, pegs 10 are provided on the puncheon which fit into corresponding holes in the matrix and thereby guide the latter. The die is then forced downwardly and, on account of the cooperation of the die portion 2 with the matrix- 3, the inlay material 9 will have a portion 11 stamped out in the corresponding shape, and, as the pressure is continued, the stamped out iinla'y material will finally be stamped into the article to be inlaid, as shown in Figs. 3 and 7. As the stamped out material is guided in the matrix 3 it cannot deviate laterally and an accurate inlay is effected.

The height of the die portion 2 of the puncheon 1s greater by the thickness of the inlay material 9 than the thickness of the matrix 3 and therefore the inlay material is pressed into the article to be inlaid exactly the thickness of the inlay material, so that a finished inlaid plate with the surface of the 1 inlay flush with the surface of the base is produced.

What I claim as my invention and desire to secure by Letters Patent is:

1. The method of manufacturing tarsia work, which consists in punching at one operation the inlay from a sheet of material through a properly "shaped matrix or die, while the die is in contact with the object to be inlaid, into the object to be inlaid.

2. The method of manufacturing tarsia work, which consists in punching at one operation the inlay from asheet of material through a properly shaped matrix or die, while the die is in contact with the object to be inlaid,'into the object to be inlaid'until the upper surface of the inlay is flush with the object.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. 

